Wire-coiling machine



March 5, 1929. J, W EKSTEDT l 1,703,995

WIRE COILING MACHINE Filed Feb. 23,- 1927 Rech@ T u H Je w 5 FIG Il A-lzv/l/l/f 'l .9

Fui

INVENTOR W. EKJTEDT BY TORNEY Patented Mar. 5, 1929.

UNITED STATES PATENT OFFICE.

JOHN W. EKSTEDT, OF BELLEVILLE, NEW JERSEY, ASBIGNOR T0 WESTDGHOUBE LAMPCOMPANY, .A CORPORATION 0F PENNSYLVANIA.

WIRE-COILING- MACHINE.

Application led February 23, 1927. Serial No. 170,125.

This invention relates, enerally, to improvements in machines or coilingwire; and the invention has reference, more articularly, to a novelconstruction of mac ine for automatically turning wire into spiral orhelical formations, such as spiral springs,

etc.,-and the novel construction of machine `mandrel; said meanscomprising a novel construction of forming die, and a novel relation ofsaid formingdie to a means for forciblyl and continuously feedin thewire into operative engagement therewith, to the`r end that a .uniformdiameter, as well as uniform spacing and pitch of the coils is attainedthrough the length of thel rodu'ced formation, even when exceedinglynesizes of wire producing exceedingly small diameters of coiledformations is employed.

Another object of this invention is to provide, in a machine of the kindmentioned, an improved automatic mechanical cut-.olf for dividing thespiral or helical formation delivered from the forming die into desiredpredetermined lengths or sections ready for use.

Other objects of this invention, not at this time more particularlyenumerated, will be clearly understood from .the following detaileddescription of the same.

lVith the Various objects of this invention in View, the same consists,primarily, in the novel wire coiling machine hereinafter set forth; andthe invention consists, furthermore, in the novel arrangements andcombinations of the several devices and parts, as well as in the detailsof the construction of the same, all of which will be more fullydescribed in the following specification, and then finally embodied inthe claims appended thereto.

The invention is clearly illustrated in the accompanying drawings, inwhich Fig. 1 is a plan view of the novel wire coiling machine, madeaccordin to and em` bodying the principles of this invention;

Fig. 2 is a side elevation of the same;

Fig. 3 is a fragmentary longitudinal section, taken on line 3-3 in Fig.1;

Fig. 3A is a detail transverse section taken on line 3*f--3A in Fig. 1;

Fig. 4 is a fragmentary longitudinal section, drawn on an enlargedscale, of the forming die 1n operative relation to the wire feeding o rforce wheels; and

Fig. 5 is a detail horizontal section, taken on line 5-5 in Fig. 4.

Similar characters of' reference are employed in all of the hereinabovedescribed views, to indicate corres onding parts.

Referring now to the awings, the reference character 1 indicates asuitable base upon which the wire coilin mechanism is mounted. Fixedupon said ase 1 by its bedplate 2 is a pedestal 3. Journaled to extendtransversely through the upper forward end of said pedestal 3 is a.spindle 1, upon kone end of which is suitably secured a driven wirefeeding or force wheel 5, vhavin a grooved periphery to embrace the inierside of a wire 6 which is led over the same.

Extending upwardly at each side of the rear end of said pedestal 3 aretransversely opposed perforate ears or lugs 7 in which ,is

supported a hin e pintle 8. Pivotally connected upon sai hinge pintle 8is a swingin frame 9, which extends forwardly above said pedestal 3, andwhich may be swun toward or away from the latter. J ournale to extendtransversely through the forward or free end of said frame 9 1s aspindle 10, upon one end of which is suitably secured an idler wirefeeding or force wheel 11, also having a, grooved periphery to embracethe upper side of the wire 6 which passes beneath the same, when saidframe 9 is swung down to position said idler wire feeding or force wheel11= in operative relation to the driven .wire feeding or force wheel 5and the said wire 6 which passes over the latter. A means is providedfor lockin down the frame 9 to liold the wire feeding or force 100 wheel11 in operative relation to the wire feeding oi' force `Wheel 5, wherebythe wire 6 is pinched therebetween, and will' consequently beoperatively fed forward by the rotation of the said drive wheel 5. This105 said pedestal 3, and having its free extrem- 110 ity exteriorly andupwardiyprojected through a slot 16 in said swinging frame 9.

Connected with said frame 9 is a fixed crossgaged therebetween.

pin 17. Said latch-bar 12 is rovided with a notch 18, having an incline(upper side 19, which when the latch-bar is thrust toward the cross-pin17, engages the latter so as to exert a downward thrust thereon, to thuspress downwardly said frame to hold the idler wire feeding or forcewheel 11 operatively related to the wheel 5 and wire 6 en- Saidlatclbbar12 1s yieldably and releasably held in the above described operativerelation to said cross-pin 17 by means of a spring act ated thrust-pm20, which is mounted in a s ldeway 21 provided in the forward portion ofsaid pedes tal 3. The spring 22 whichpactuates sald thrust-pin 20 isbacked by a threaded plug 23 which screws into said pedestal 3, asshown, more particularly in Figure 3.

A suitable power transmission means for' rotating said driven wirefeeding. or force wheel 5 is provided, which 1n the preferred form,comprises an electric motorV 24, as the source of power, the same beingconveniently mounted on a bracket or shelf 25 connected with saidbase 1. Mounted on said base 1 in alignment with the spindle 4 of, saiddriven wire `feeding or force wheel 5, is a housing 26 having a bearingportion 27 in wh1ch 1s journaled a transverse shaft 28. Loosely mountedon said transverse shaft 28 1s a worm gear 29. Also journaled inconnection with said housing 26 is one end of a drive shaft 30, which isoperatively coupled at its' outer end with the motor 24 so as to bedriven thereby. Fixed on the inner end of said drive shaft 30 is a worm31, which operatively meshes with and drives the worm gear clutch jaws33, adapted to be brought into clutched engagement with female clutchjaws 34 provided `in connection with the hub of said worm gear 29, sothat the latter by the manipulation vof the clutch mechamsm may beengaged or disengaged at will with the transverse shaft 28. Saidclutch-sleeve 32 possesses an annularly groovedexterior end 35, -toreceive the connection therewith of a clutch shift-lever 36, which ispivoted upon a fulc'rum ear 37 provided in connection with said housing26. Arranged intermediate said transverse shaft 28 and the spindle 4 ofthe driven wire feeding or force wheel 5, is a separable coupling member38 having one end slidably secured to the transverse shaft 28 by a pinand slot connection 39, while its other end is socketed to engage overthe end of the spindle 4, the latter having a transverse pin 40 whichenters the longitudinal slots 41, when the parts are operativelyjoinedtogether, so that rotary movement of the transverse shaft 28 istrans- Mounted ony the base `1, intermediate the' spool `43,and thepedestal 3, is a 'standard or bracket 44 provided with an outwardlyprojecting journal stud 45. Rotatably mounted on said journal stud 45 isa measuring reel -46 of suitable diameter. The wire 6 from said supplyspool 43 is led under and around the circumference of said measuringreel 46, thence passing to and between said l wire feeding or forcewheels 5 and 11. Formed in connection with the rear end of said pedestal3 is a rearwardly projecting bracket extension 47 adjacent to the end ofwhich isrotatably mounted an idler guide wheel'48, having a groovedperiphery over which thewire 6 is guided as 'it passes to said wirefeeding or force wheels 5 and 11. vSuitably secured to said bracketextension 47 is a preferably resilient transversely project ingsupporting arm 49, upon the free end of which is supported a lubricatingpad 50, made of felt or any other suitably absorbent material adapted tobc saturated with oil or other desired lubricant. The supporting arm 49so supports the pad 50, that the latter is borne into engagement withthe wire 6, as the latter moves from the guide wheel 48 to the wirefeeding or force wheels 5 and 11, thus lubricating the surface oftheWire, to thereby reduce friction between the same and the wire coilingdie, into operative engagement with which said Wire feeding or forcewheels 5-and 11 propel said wire. v Connected with the forward end ofsaid edestal 3 is a longitudinally projecting` racket or shelf 51, uponwhich is supported -an adjustable means for mounting a wire colling die52. The adjustable supporting means for the die comprises a carriermember 53 supported in connection with said bracket and shelf 51, forhorizontal swingmg adjustment, by means of ya pivot stud 54. In order toprovide means for making the side to side swinging adjustment of saidcarrier member 53, and at the same time retain the same in desiredadjusted position, the said carrier member 53 is provided with atall-piece 55 of reduced width, which extends between a pair ofupstanding stationary lugs 56 provided in connection with said bracketor shelf 51. rEach lug 56 is provided `.with an adjusting screw 57,which respectively bear against opposite sides of said tail-piece 55. Byrelaxing one screw A and turning home .the other screw, the carriermember-53 ma be swung in one direction to thedesie degree, and thereuponheld in such adjusted position, or by turning home the first mentionedscrew and relaxing the second mentioned screw, adjustment to the desireddegree lnay be lnade in the opposite direct-ion. Pivotally connectedwith said carrier member 53, for vertical swing? ing or up and downadjustment, is a saddle or die-holder 58 provided with a longitudi-` nal,opening 59 through which the die 52 extends. The adjustment of saidsaddle or die-holder 58 kis controlled'by an adjusting screw 60, whichpa-sses through the free end 0f said saddle or die-holder.4 Adjustably'secured by thev set-screw 61'to the tail end of the die 52 is adepending arm 62, provided in its'lower end with a stud or dowel 63which enters a socket 64 provided in the outer end of the carrier member53. Threaded through said arm 62, intermediate the die 52 and the studor dowel 63 is an adjustable stop-screw 65, which is stopped against theouter end of said carrier member 53 when the die .is inoperativesupported relation to the saddle or die-holder 58. The adjustment of thecarrier-member 53 and saddle or die-holder 58 will determine theposition of the operative end of the die 52, so that the salne will beopposed tov and properly aligned with the meeting peripheries of thewire feeding or force wheels 5 and 11, so as to properly receive thewire 6 fed forward bythe latter. The

longitudinal adjustment of the die 52 is determined by manipulating thev'stop-screw 65. When once such adjust-ment vis made, the die 52 may belocked against rearward movement by the set screw 66 which is threadeddownwardly through the saddle orv die l1older'58. If for any lreason itis desired to remove the die 52, without disturbing the adjustments, sothat the same can be returned to the same predetermined operativeposition, the set-screw 66 may be relaxed,

and the die 52 thereupon may be withdrawn from the saddle or holder 58.When returned to the saddle or holder its desired predetermined positionwill be regained, for

' the reason that the adjusted stop-screw 65 will. by re-engagement withthe outer end of the carrier member 53, limit the inward movement to thepredetermined degree.

The Operative end of the die 52 is formed i to provide a substantiallysemicircular die- 'depression 67 of a width corresponding to thediameter of wire to be worked upon, and of a radius corresponding to theradius of the helix to be formed. The outer side face of the die isprovided with a tapered shear portion 68 which determines the spacingbetween the coils of the spiral or helical formation/produced by thedie. f

In operation the wire 6 is led vforward ffrom 'the measuring reel46,.over the guide wheel 48`,l and thence between the groovedperlpheries of thefwi're feeding or force wheels 5 andll. The spindle 4of the wire feeding orforce wheel 5 being coupled with the transmissionnl echanisln, the clutch of the latter is--thrown in,- whereby power istransmitted 'to vthe wire `feeding or force ,wheel 5,-'the rotation ofwhich pinches the Wlre 6 betweenits periphery and the periphery of thewire feedingor force wheel 1l. thus causlng the wire 6' to be forcedyendl wise into engagement with the die 52, and at rthe same timedrawlng the wire from the supply spool 43, and rotating, during theoperation, the measuring yreel 46. The end of thewire 6, thus forcedtoward the die 52 ent-ers the die-depression 67 and ,it is curledupwardly' and over by engagement therewith, as shown lin Fig.' 4; theformed coilsare at the same time caused to rotate so that as the wirepasses out ofthe diedepression 67 it is carried around against the outerface of the shear portion 68, which thus enters between the turns of thecoils vwhereby the same are uniformly ,spaced apart. In practice theoperative end of the d1e 52 is positioned intermediate the peripheriesof the wire feeding'or force wheels 5 and 11, as near to the pinchingpoint of the latter as possible. In order to prevent displacement of thewire from the grooved periphery ofthe wheel 5, asthe wire moves beyondthe pinching or gripping points of the wheels 5 and 11, a resilientkeeper finger 69 is provided, the body of which is supported on andlattached to the underside of the free end of the frame 9, so that itsfree end bears downwardly upon the wire, and i Since the movetransversely outward, as shown in Fig. 1. A -novel means, actuated bythe rotation of the measuring reel 46, is provided Ffor severing thespiral or helical formation 6 into suitable predetermined length. Thismeans consists in an automatic cut-off mechanism, which comprises asuitable standard or support 70 mounted on the base 1, preferably insuch manner, that the same may be swung outwardly from a normaloperative position in alignment with the spiral or helical formation 6,this arrangement being effected by pivotally connecting one end of thestandard 70 to the 1, and providing a lock-screw device 71 to engagetheslottedend 72 of the standard `70,

' and thus lock thesame innormal 'operative position. Supported bysaidstandard a tubular guide element 73 through which the formation 6'`moves as it issues outwardly from the die 52.- Pivoted upon av fulcrumstud 74,l which projectsrfroin the ly) outer face of said standard 70,is a bell-4 justed relative to the cutting-blade 76, the guide elementbeing retained 1n proper ad; justed position by meansof a set-screw 4which is threaded into the u per end of said standard 7 Q. The means oractuating the bell-crank lever 75,compr1ses 'a' vertically reciprocablemember 78 which 1s slidable through the base 1 and the bottom flangeofsaid standard ,70, Said member 78 is .provided vat its upper end withan annularly grooved head 9, 1n which is engaged the end stud 75 ofthelower arm of sai bell-crank lever 75. Said standard '70 is provided witha socketed portion 80, in which is arranged a push-pin'81 sub]ect to thethrust of a compression spuug 82 which is arranged in said'socketedportion 80 and held in place by a plug 83. Said push-pin 81thrust against the u per arm o f said 'l0 -bell-'crank lever 75 to holthe s anie with the cutting-blade 76 in normal inltlal position (seeFigure 2). The means. for producing the properly-timed operativemovement of said bell-crank lever 75 and its cutting-blade 76.- Thelarger the measuring reel the longer will-be the severed measuring reelthe shorter will be the sevei'edportion of the formation. Said means foractuating the bell-ciank and cutting' blade 76, comprises a cam 84arranged to rotate with said measuringl reel 46, and' possessing a lstep85 intermediate its hlgh 1 perimeter of said cam 84. `Pivotall 5 iscarfrom the ide element 73. is -v so that its exit end may bevoperatively ad- Y.

' 76 is controlled by the measurmg reel 46% mediate each operation ofthe cutting-bladev v ortion of the formation,and conversely, t e smallertheA and low point. Pivoted to said standard.

, #loaves or bracket 44 is' a tri -lever member 86 havf ingy at itsupper een an off-set nosing 87 which is enga able with the perimeter ofvthe .cam 84.` he lower end of. said lever member 86 extends downwardlythrough the base 1, and a pull spring 88is provided member in riding.engagement with the nected with the lower end of `sai lever member 86is atrip-pawl 89, yieldably held to yieldably hold the nosing 87 of saidlever Y i in normal upward projection by `a pullspring 90. IlivotallyAmounted on a -fulcrum block 91 so as to extend beneath the base 1 is arocking lever 92, the forward end of which is operatively engaged withthe lowex` end of saidvertically reci rocable member 78, while itsrearward en is provided with a downwardly off-set nosing 93.. As themeasuring reel 46 begins its rotation, the nosing 87 ofthe lever member86 is 'swung outwardly by the rise of the cam 84, thereby swinging thelower end of said lever member 86 toward the adjacent end 'of therocking lever 92, whereby the trip-pawl 89 is carried forward past thenosin 93 the As tlie measuring reel 46 completes its rotation, the step85v of the cam 84 is brou ht ropposite the nosing 87 of the lever mein rk86, which thereby permits a quick drop of pawl yielding to engagementwith t e latter.

the nosing 87 from the high point of the f l cam 84 back to the lowpoint thereof, the

lever member 86 thereby swinging in the,l ioo opposite direction underthe pull ofthe spring 88. This quick return oscillation of kthe levermember 86 thus effected, caulses .ing lever 92, and since the trip-pawlis unyieldable when moved in such direction. its passing engtagementwith the nosing 93 produces a.l li ing effect upon the latter, whichswings upward its rearward end and downward its forward end. Thedownward swing of the forward end of said rocking lever 92, pullsdownwardly the vertically reciprocable member 78, thereby in turnrocking the bell-crank lever 75 on its fulcrum to carry said cuttingblade 76 into severing engagement with that portion of the formation 6which has issued from the guide element 73. The abov'e describedoperation's are repeated at each revolution of the measuring reel.

I am aware that some changes may be made Iin the various arrangementsand combinations of the several devices and parts, without departingfrom the scope of my present invention as above described, and asdefined in .the appended claims. Hence I do not limit my inve'ntion tothe exact arrangements and combinations of parts asdescribed in theforegoing specification, nor

do I conine myself to the exact mechanical details of the constructionof said parts as illustrated in the accompanying drawings.

Wliatis claimed is:

1. In a machine of the kind-described, the combination with a pair ofwire feeding wheels having grooved peripheries, of a wire coiling diehaving a substantially' semicircular die-depression sponding in width tothe diameter of the wire to beworked upon, said die being so disposedthat said die-depression receives the wire directl from the groovedperiphcries of said feeding wheels adjacent to the pinching point lofthe latter.

2. `In a machine of the kind described, the combination with va pair ofwire feeding Wheels having grooved peripheries, -of a wire coiling diehaving a substantially semicircular die-depression substantiallycorresponding in width to the diameter of the wire to be worked upon,said die being so disposed that said die-depression receives the Wiredirectly from the grooved peripheries of said feeding wheels adjacent tothe pinchino point of the latter, and said die having a dhamfered sideface to form a shear member at one side of said die-depression forspacing the convolutions 4into which the wire is formed by engagementwith the die. n

3. In a machine of thc kind described, the combination with a pair ofwire feeding wheels having grooved peripheries, of a wire coiling diehaving a substantially semi-circular die-depression substantiallycorresponding in width to the diameterpf. the wire to be worked upon,said die being entered between the wire discharging sides of saidfeeding wheels withl its die-depression opposed to and adjacent to thepinching point of said feeding wheels.

4. In a machine of the kind described, a driven wire feeding wheel,stationary means for mounting the same, an idler wirefceding wheel, amovable frame in which said latter wheel is mounted, whereby the samemay be tangentially opposed in operative relation to said driven wirefeeding wheel, means f or tensionally holding said frame and idler wirefeeding wheel in operative position, and a wire coiling die having asubstantially semicircular die depression opposed to and adjacent to thepinching point of said feeding wheels.

5. In a machine of the kind described, the combination with a pair ofwire feeding wheels having grooved peripheries, of. a wire coiling diehaving a substantially semicircular die-depression' substantiallycorrespondin in width to the diameterof the wire to fhe worked upon,said die being entered between' the wire discharging sides of saidfeeding wheels, with its die-depression opposed to and adjacent to thepinching substantially correpoint of said feeding wheels, and aresilient eeper finger transversely extended across the` periphery oflsaid driven wheel at al point intermediate its said die-depression.

pinching .point 4and 6. In alfmachineof .the kind described, the

combination. with a pairv offwire :feeding wheels havinggroovedperipheries, ofafwire -1 coiling die having a substantially semicirculardie-depressiony substantially corresponding in width to the diameter ofthe wire to be worked upon, said die being entered between the wiredischargin sides of said feeding wheels, with its dieepression opposedto and ,adjacent to the pinching point of said feeding wheels, landmeans for l adjustablyl supporting said die in operative e relation ytosaid'feeding wheels. f

7. In a machine of the kind described, a driven wire feeding wheel,stationary means for mounting the same, an idler wire feeding Wheel, amovable-frame Lin which lsaid i driven wire feeding wheel, stationarymeans for Vmounting the same, an idler wire feeding wheel, amovableframe in which said latter i ion Wheel is mounted whereby the same maybe i tangentially opposed in operative relation to said driven wirefeeding wheel, means for tensionallyx holding said frame and idler wirevfeeding W eel in operative position, a ower transmission means foractuating said riven wire feeding wheel, a Wire coiling die having asubstantially semicircular die-depression opposed to and adjacent to thepinching point of said vfeeding wheels, and means-for 'adjustablysupporting said die in operative relation to said feeding wheels.

9. In a machineof the kind described, the

wheels having grooved peripheries of a wire coiling die having asubstantially semicircular die-depression substantially corresponding.in width to the diameter `of. the wire to kbe worked upon said die beinentered between the wire dischargi ',si es of said feedingy wheels, withits die-g opposed to and adjacent to the .pinching point of said feedingwheels,a wire guideepression wheel aligned with and spaced rearwardlyfrom said feeding wheels, a Wire lubricatin means intermediate saidfeeding wheels and said guide wheel, and means for supporting saidlubricating means in contact .with the 115 i combination with a pair ofwire feeding f feedinfnwheels.

1o. .meehine'ef the kind deee'ribed, d.V

and acam-means rotated by said measuring reel for operatin said levermechanism.

13. In a machine of the kind described,

driven wire feeding wheel, stationary means fthe combination with `apair of grooved tanfor mounting the same anidler wire feeding wheel, 4a.movable frame pivotally connected with said stationary means in whichsaid latter'wheel is mounted whereby the same may be tangentiallyopposed in operative relationl to said driven wire f wheel, means fortensionallyholding sai said guide wheel, means for sup frame and idlerwire f vwheel in o r.-

ative 'tion, an idlerwire ,guidev w eel alignedoith and aced rearwardlylfrom `said feeding wh a wire lubricat vfeeding wheel, `Va movable framepivotally connected withusaid stationary means in: which saidlatterwheel is mounted whereby the same may be tangentially opposed inoperative relation to said'driven wire feed-yI wheel, means fortensionally holding said frame and idler wire feeding wheel in operativeposition, an idler wire guide wheel aligned with and spaced rearwardlyfrom said feeding wheels, awire lubricating means intermediate saidfeeding wheels and said guide wheel, means for supporting saidlubricating means in contact with the V means for actuating sai wirepassing between said guide wheel and feeding wheels, a wer transmissiondriven wire feeding wheel, a wire coiling 'die ha a substantiallysemicircular die-depressionl opposed t0 and adjacent to the pinchingpoint of said feeding wheels, and means for adjustably supporting saiddie in operative relation to said feeding wheels.

12. In a machine of the kind described the combination with a air ofgrooved ntial wire feeding w eels, of a wire coilin die having asubstantially semicircular 'e-depression opposed to and adjacent to thepinching point o said feeding wheels, means for supplying wire to saidfeeding wheels, a rotatable measuring reel intermediate saidl feedingwheels and said wire sg means around which the wire is p .-e e a tubularguide to receive the coiled wire formation issuing from said die, a

` cuttingjilade reciprocable acro the discharge end of said tubularguide, a lever mechanism for actuating said cutting-blade,

ntial wire feeding wheels, of a wire coiling die having a substantiallysemicircular die-depression opposed to and adjacent to thepinching pointof said vfeedin wheels, means for supplying wire to sai feeding wheels,4a rotatable measuring reel intermediate /said wheels and said wiresupplying means around which the wire is l assed, means to support 'thecoiled wire ormation issuingfrom said die, and means actuated bytherotation ofA said measuring reel for vseveringthe coiled wire formationpassed throu h said fsup rt into redetermined length P0 p 14:.y In amachine of the kind described, the combination with a wire coiling meansand means for feeding wire into o erative engagement therewith, ofarotatab eemeasuringV reel around which the wire passes to said feedingmeans, means to su port' the coiled wire formation issuing fliioin saidcoiling means, and means actuated by the r rotation of said measuringreel for severing the coiled wire formation said supportintopredetermined lengths."

15'. In a machine of the kind described,

-the combination with a wire coiling means and means for feedingl wireinto operative engagement therewith, of a rotatable measuring reelaround which the-wire passes tp said feeding means, means to support thevcoiled wire formation issuing from said coiling means, and meansactuated by the rotation of-said measuring reel for severing the coiledwire formation passed through said support into predetermined lengths,comprisinga pivoted bell-crank lever having at.

one end a cutting-blade movable across the exit end of said support, areciprocable means engaged with-the o Vposite end of said bell-cranklever, aroc ing lever for actuating said reciprocable means, and meansactuated by the rotation of said measuring reel for-operating saidrocking-lever.

16. In a machine of the kind described, the combination with a wirecoiling means and means for feeding wire into operative passed throughengagement therewith, of a rotatable measurin reel around which the wirepasses. to said feedin means, means to support the coiled wire ormationissuing from said coiling means, and means actuated by the rotation ofsaid measuring'reel for severing the coiled wire formation passedthrough said support into predetermined lengths, comprising a pivotedbell-crank lever having at one end a cutting-blade movable across theexit end of said support, a reciprocable means engaged with the oppositeend of said bell-crank lever, a rocking-lever for actuating saidreciprocable means, a pivoted triplever having at one end a trip-pawlyieldable in one direction, said rockin -lever having a nosingengageable by sai -trip-pawl, and a cam means rotated by said measuringreel for actuating said trip-lever.

17. In a machine ofthe Pkind described, the combination with a Wirecoiling means andvmeans for feeding wire into o erative engagementtherewith, of a rotatab e measuring reel around which the Wire passes tosaid, feedin means, means to support the coiled Wire ilormation issuingfrom said coiling means, and means actuated by the rotation of saidmeasuring reel for severing the coiled 'Wireformation passed throughsaid support into predetermined lengths, comprisinga pivoted bell-cranklever having at one end a cutting-blade movable across the exit end ofsaid support, spring means for disposing said bell-crank leverl and itscutting-blade in normal initial position, means for actuating saidbell-crank lever, and a cam means rotated by said measuring reel foroperating said bell-crank actuating means.

18. In a machine of the kind described, the combination with a Wirecoiling means and means for feeding wire into operative engagementtherewith, of a rotatable measuring reel around which the wire passes tosaid feeding means, a tubular guide to receive the coiled lWireformation issuing from said Wire coiling means, a pivoted bellcranklever having at one end a cutting-blade movable across the `exit end ofsaid tubular guide, a vertically reciprocable member engaged with theopposite end ofl said bellcrank member, a pivoted rocking-lever hav--ing one end engaged with -said vertically reciprocable member andhaving an olf-set nosing at its opposite end, spring means for,

disposing said bell-crank lever and associated parts in normal initialposition,.a pivoted end of said trip-lever in operative relation to saidcam means, and a trip-pawl on the free end of said trip-lever, saidtrip-pawl .being operatively non-yieldable to said off-v set nosing ofsaid rock-shaft upon movement of said trip-lever in operative directionbut yieldable thereto during the'reverse lmovement of said tri -lever.

19. In a mac ine of the kind described,

the combination with a pair of'tangential Wire feeding wheels havinggrooved peripheries, of a wire coiling die having a "substantiallysemi-circular die-depression substantially corresponding in width to thediameter of the wire to be worked upon, said die being entered betweenthe Wire discharging sides of said feeding Wheels, With its dievdepression opposed to and adjacent to the pinching point of said feedingWheels, a tubular guide to receive the coiled Wire formation issuingfrom said die, a pivoted bellcrank lever having at one end acuttingblade movable across the exit end' of said tubular guide, andmeans for intermittently actuating said bell-crank lever and its cuttinblade.

20. n a machine of the kind described,`

the combination with a pair of tangential grooved Wire feedin Wheels, ofa vvire coiling die having a su stantially semlcircular die-depressionsubstantially corresponding -having .at one end a cutting-blade movableacross the exit end of said tubular guide, a vertically reciprocablemember engaged with the opposite end of `said bell-crank member, apivoted rocking-leverhaving one end engaged with said verticallyreciprocable member and having an off-set nosing at its opposite end,spring means for disposing said bell-crank ,lever and associated partsin normal initial position, a pivoted trip-lever, a cam means operatedby lthe rotation of said measuring reel for actuating said trip-lever,spring means for holding one end of said, trip-lever in operativerelation to said cam means, and a `trip-pavvl on the free end of saidtrip-lever, said trippawl being operatively non-yieldable to saidoff-set nosmg of said rock-shaft upon movement of said trip-lever inoperative direction but yieldable thereto 'during the reverse movementof said trip-lever.4

`In testimony whereof, I have hereunto subscribed myv name this eleventhday'of February, 1927. t

1 JOHN EKSTED'I.

